Carbon nanostructure on a tungsten needle tip formed by electron beam induced deposition and its graphitization through resistive heating

Renchao Che, Masaki Takeguchi, Masayuki Shimojo, Wei Zhang, Kazuo Furuya

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Using ferrocene as a precursor, an amorphous carbon nanorod was fabricated on a tungsten needle tip by electron beam induced deposition inside an ultrahigh-vacuum scanning electron microscope at room temperature. This needle tip was driven by a stepping motor and pizeo-driving device to make contact with a molybdenum substrate inside a specially designed transmission electron microscope (TEM) specimen holder. A 100 μA current flowed through this nanorod and resistance heating was induced. Within 120s, the original amorphous carbon nanorod was transformed into graphite nanostructures by this thermal energy. This phase transformation process was confirmed by high-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). After applying a current of 120s, graphite sheets with 0.34 nm lattice spacing in HRTEM image and π bonding peak in EELS spectra were detected from the nanorod, which were not detected before that treatment.

Original languageEnglish
Pages (from-to)5582-5585
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number6 B
DOIs
Publication statusPublished - 2006 Jun 20
Externally publishedYes

Fingerprint

Graphitization
graphitization
Nanorods
needles
Needles
nanorods
Tungsten
Electron beams
Nanostructures
tungsten
electron beams
Heating
Carbon
heating
Electron energy loss spectroscopy
carbon
Amorphous carbon
High resolution transmission electron microscopy
Graphite
Electron microscopes

Keywords

  • Carbon nanostructure
  • Electron beam induced deposition
  • Electron energy loss spectroscopy
  • Ferrocene
  • Nanorod
  • Resistive heating

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Carbon nanostructure on a tungsten needle tip formed by electron beam induced deposition and its graphitization through resistive heating",
abstract = "Using ferrocene as a precursor, an amorphous carbon nanorod was fabricated on a tungsten needle tip by electron beam induced deposition inside an ultrahigh-vacuum scanning electron microscope at room temperature. This needle tip was driven by a stepping motor and pizeo-driving device to make contact with a molybdenum substrate inside a specially designed transmission electron microscope (TEM) specimen holder. A 100 μA current flowed through this nanorod and resistance heating was induced. Within 120s, the original amorphous carbon nanorod was transformed into graphite nanostructures by this thermal energy. This phase transformation process was confirmed by high-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). After applying a current of 120s, graphite sheets with 0.34 nm lattice spacing in HRTEM image and π bonding peak in EELS spectra were detected from the nanorod, which were not detected before that treatment.",
keywords = "Carbon nanostructure, Electron beam induced deposition, Electron energy loss spectroscopy, Ferrocene, Nanorod, Resistive heating",
author = "Renchao Che and Masaki Takeguchi and Masayuki Shimojo and Wei Zhang and Kazuo Furuya",
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T1 - Carbon nanostructure on a tungsten needle tip formed by electron beam induced deposition and its graphitization through resistive heating

AU - Che, Renchao

AU - Takeguchi, Masaki

AU - Shimojo, Masayuki

AU - Zhang, Wei

AU - Furuya, Kazuo

PY - 2006/6/20

Y1 - 2006/6/20

N2 - Using ferrocene as a precursor, an amorphous carbon nanorod was fabricated on a tungsten needle tip by electron beam induced deposition inside an ultrahigh-vacuum scanning electron microscope at room temperature. This needle tip was driven by a stepping motor and pizeo-driving device to make contact with a molybdenum substrate inside a specially designed transmission electron microscope (TEM) specimen holder. A 100 μA current flowed through this nanorod and resistance heating was induced. Within 120s, the original amorphous carbon nanorod was transformed into graphite nanostructures by this thermal energy. This phase transformation process was confirmed by high-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). After applying a current of 120s, graphite sheets with 0.34 nm lattice spacing in HRTEM image and π bonding peak in EELS spectra were detected from the nanorod, which were not detected before that treatment.

AB - Using ferrocene as a precursor, an amorphous carbon nanorod was fabricated on a tungsten needle tip by electron beam induced deposition inside an ultrahigh-vacuum scanning electron microscope at room temperature. This needle tip was driven by a stepping motor and pizeo-driving device to make contact with a molybdenum substrate inside a specially designed transmission electron microscope (TEM) specimen holder. A 100 μA current flowed through this nanorod and resistance heating was induced. Within 120s, the original amorphous carbon nanorod was transformed into graphite nanostructures by this thermal energy. This phase transformation process was confirmed by high-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). After applying a current of 120s, graphite sheets with 0.34 nm lattice spacing in HRTEM image and π bonding peak in EELS spectra were detected from the nanorod, which were not detected before that treatment.

KW - Carbon nanostructure

KW - Electron beam induced deposition

KW - Electron energy loss spectroscopy

KW - Ferrocene

KW - Nanorod

KW - Resistive heating

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